My late uncle was a Catholic Priest who worked in the missions in the Philippines. He was taken prisoner when Japan invaded, and rode out the war in an internment camp.
Mind you he was a Christian clergyman whose core teachings were all about forgiving your enemy. He never said anything good about the Japanese the whole time I knew him. Said the military prisoners in the camp next-door had things far, far worse.
I had a friend on the Bataan Death march. Fortunately. he escaped. He was an Olympic athlete.